Answer:
Step-by-step explanation:
we know that
The area of rectangle is equal to
where
L is the length of rectangle
W is the width of rectangle
In this problem we have
substitute
Apply distributive property
Answer:
D. -√3/2
Step-by-step explanation:
Remember your unit circle.
Alternatively, you can plug in cos(7π/6) into your calc (Put it in rad mode) and calculate your answer.
By looking at the graph and seeing which point crosses the y axis. This point will always have an x coordinate of zero.
That would be the area of a circle of radius 12 miles
= pi r^2 = 452.4 square miles to nearest tenth.